Use ApplicationSearch in Diviner

Summary: Ref T988. Ref T2625. Rough cut of ApplicationSearch in Diviner, for detailed Atom queries. This isn't useful yet, and isn't linked in the UI.

Test Plan: {F44836}

Reviewers: btrahan, chad

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T988, T2625

Differential Revision: https://secure.phabricator.com/D6094